What should I do if my cat ate Dieffenbachia?

Per Pet Poison Helpline: remove any remaining plant material from your cat's mouth and gently wipe the mouth with a wet cloth to dislodge crystals. Do NOT induce vomiting and do NOT give home antidotes without speaking to a vet or Pet Poison Helpline first. Call your vet immediately if you see any tongue or throat swelling, any change in breathing, persistent retching, or if your cat cannot close its mouth. For uncomplicated drooling alone, call within the hour.

What should I do if my dog ate Dieffenbachia?

Per Pet Poison Helpline: remove any remaining plant material from your dog's mouth and wipe the mouth gently with a wet cloth to clear the oxalate crystals. Do NOT induce vomiting and do NOT give home antidotes without first consulting your vet or Pet Poison Helpline. Call your vet immediately if you see any swelling around the face, throat, or tongue, any change in breathing, or persistent vomiting. For mild drooling that resolves on its own within an hour, monitor and call if it returns.

Dieffenbachia — (c) Andrés Ramírez-Barrera, some rights reserved (CC BY), uploaded by Andrés Ramírez-Barrera — Photo by (c) Andrés Ramírez-Barrera, some rights reserved (CC BY), uploaded by Andrés Ramírez-BarreraiNaturalistCC BY

Photo by (c) Andrés Ramírez-Barrera, some rights reserved (CC BY), uploaded by Andrés Ramírez-BarreraiNaturalistCC BY

Pet safety reference

Dieffenbachia

Q: Is Dieffenbachia safe for cats?

Dieffenbachia is potentially toxic to cats. Symptoms are typically immediate upon chewing. While rarely fatal, the discomfort can be significant; contact your veterinarian if ingestion is suspected.

Q: Is Dieffenbachia safe for dogs?

Dieffenbachia is potentially toxic to dogs. The insoluble calcium oxalate crystals cause mechanical irritation. If your dog shows signs of respiratory distress or persistent vomiting, seek veterinary care immediately.

Dieffenbachia is a popular tropical houseplant known for its large, variegated leaves. It contains insoluble calcium oxalate crystals that can cause irritation if ingested or chewed.

Check a list

DieffenbachiaDumb CaneLeopard LilyTuftroot

Light: Bright indirect light
Habit: Upright
Care: Moderate

Safety status

Cats & Dogs

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

Sources

ASPCA Toxic Plant List

If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.

Cats — concern notes

Common signs

Oral irritation, intense burning and irritation of mouth, tongue and lips, excessive drooling, vomiting, and difficulty swallowing.

Escalation note

Symptoms are typically immediate upon chewing. While rarely fatal, the discomfort can be significant; contact your veterinarian if ingestion is suspected.

Dogs — concern notes

Common signs

Oral irritation, excessive drooling, vomiting, difficulty swallowing, and pawing at the mouth.

Escalation note

The insoluble calcium oxalate crystals cause mechanical irritation. If your dog shows signs of respiratory distress or persistent vomiting, seek veterinary care immediately.

Safer alternatives

Safer pick

Calathea

Calathea spp.

Calathea has the same broad-leaf indoor presence without dieffenbachia's painful calcium oxalates.

Generally safe for cats & dogs.

Cast iron plant is a pet-safer upright leafy alternative for the same corner.

Generally safe for cats & dogs.

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Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Dieffenbachia contains insoluble calcium oxalate crystals that cause oral irritation.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Dieffenbachia is a genus of tropical flowering plants in the family Araceae, noted for their patterned leaves.

cats safety page My cat ate Dieffenbachia dogs safety page My dog ate Dieffenbachia

Often compared with

Same safety verdict

Other plants with the same verdict

Baby Doll Ti Plant

Cordyline terminalis

The Baby Doll Ti Plant is a popular tropical ornamental known for its vibrant, colorful foliage. It contains saponins which can cause gastrointestinal distress if ingested by pets.

Potentially toxic for cats & dogs.

Cannabis

Cannabis sativa

Cannabis sativa is a flowering plant species known for its psychoactive compounds, which can cause significant physiological distress if ingested by pets. It is widely recognized as a toxic substance for both cats and dogs.

Potentially toxic for cats & dogs.

Dracaena

Dracaena spp.

Dracaena is a popular genus of ornamental foliage plants known for their architectural, palm-like appearance. They contain saponins which can cause gastrointestinal and neurological distress if ingested by pets.

Potentially toxic for cats & dogs.

Striped Dracaena

Dracaena deremensis

Striped Dracaena is a popular indoor foliage plant known for its long, lance-shaped leaves with distinct variegation. It contains saponins, which can cause adverse reactions if ingested by pets.

Potentially toxic for cats & dogs.

Same growing conditions

Plants for the same room

Bay Laurel

Laurus nobilis

Bay Laurel is a popular culinary herb often grown as an ornamental shrub or tree. While prized for its aromatic leaves, it contains essential oils that can cause digestive distress if ingested by pets.

Potentially toxic for cats & dogs.

Boston Fern

Nephrolepis exaltata bostoniensis

The Boston Fern is a popular, lush houseplant known for its arching fronds and preference for high humidity. It is widely considered safe for pets, though ingestion of any plant material can occasionally cause minor digestive upset.

Uncertain for cats.

Generally safe for dogs.

Copperleaf

Acalypha godseffiana

Copperleaf is a tropical shrub known for its vibrant, variegated foliage. It contains compounds that can cause irritation if ingested by household pets.

Potentially toxic for cats & dogs.

Elephant Ear

Alocasia spp.

Alocasia is a genus of rhizomatous, broad-leaved perennial plants known for their dramatic, arrow-shaped foliage. They contain insoluble calcium oxalate crystals that cause immediate irritation upon contact with soft tissues.

Potentially toxic for cats & dogs.